Inca Pachacuti's Expansion

Timeline

1. 1451–1460Central Peruvian highlands · Andes MountainsPachacuti organized campaigns centered on professional armies and noble warriors, defeating the Chincha and remnants of the Chanka and expanding northward. After conquest he practiced divided rule: retaining some local leaders while stationing Inca officials to collect tribute and conscript mita labor.
2. 1451–1460Inca road system · PeruThe empire built stone roads, bridges, and relay storehouses in conquered areas, enabling rapid movement of armies, messengers, and tribute. Administrative stations and agricultural terraces were promoted in tandem, bringing remote regions into the central grain and tax system.
3. 1455–1460Machu Picchu · Cusco RegionPachacuti rebuilt the Temple of the Sun (Coricancha) in Cusco and possibly built mountain fortresses and estates in the Urubamba Valley. Stonemasonry combined with imperial ritual displayed the Sapa Inca's sacred authority as a descendant of the sun.